Military. Pinger. makers of Android and iOS apps to make calling and texting free over Wi-Fi, have partnered with Operation Gratitude. a non-profit whose goal is to send care packages to U.

Military; to donate $1 for every app download of Pinger Textfree – Free Texting up to $5,000 until Veteran’s Day. “We hear from military members who use our free texting and talking apps to stay in touch with loved ones back home,” said Greg Woock, Pinger co-founder and CEO. “We appreciate their service to the United States and their patronage of Pinger, so we wanted to give back.